Steam hydraulic compress



(No Model.)

W. W. BIERGE.

STEAM HYDRAULIC GOMPRESS.

arm/V7022 21 cu -73 Patented July 3.1, 1894.

WITNESSES UNITED ST TE-S PATENT GFFICE.

WILL W. BIERCE, or MONTGOMERY, ALABAMA.

STEAM HYDRAULIC COM PRE'SS.

SPECIFICATION forming part of Letters Patent No. 523,924, dated July 31,1894.

' Application filed July 26,1893. Serial No.43L49'7. (No model.)

To all whom it may concern/.

Be it known that I, WILL W. BIEROE, of Montgomery, in the county ofMontgomery and State of Alabama, have invented certain 5 new and usefulImprovements in SteamHydraulic Oompresses; and I do hereby declare thatthe following is a full, clear, and exact description of the invention,which will enable others skilled in the art to which it appertains tomake and use the same, reference being had to the accompanying drawings,and to the letters of reference marked thereon, which form part of thisspecification.

This invention relates to certain improvements in steam hydrauliccompresses.

The object of the invention is to provide an improved steam hydrauliccompress constructed and arranged in such a manner that the pistons ofthe hydraulic cylinders can be easily and quickly removed when desiredand then replaced through the inner open ends of said cylinders, wherebythe said pistons can receive proper attention and yet render the machineinoperative in but a comparatively short space of time.

The invention consists in certain novel features in construction and incombinations of parts more fully described hereinafter and particularlypointed out in the claim.

Referring to the accompanying drawings: Figure 1, shows in sideelevation the steam and hydraulic cylinders of .the compress. Fig. 2,isadetailed view with the parts broken away, showing the piston rod withits piston. 3 5 In the drawings the reference letter a, indi cates thesteam cylinder, and b, indicates the hydraulic or power cylinder locatedopposite and in continuation of the steam cylinder. These two cylindersare clamped or otherwise secured together in alignment and a suitabledistance apart. The frontend of the power or hydraulic cylinder isprovided with the connections which carry the actuating fluid into thepressure cylinder of the press proper. The front end of one of thehydraulic cylinders carries the large heavy check or controlling valve.The rear ends of the hydraulic cylinders are open so that it is possibleto slide the hydraulic pistons from the open ends of their 50 cylinders.

1), indicates thepiston in the steam cylinder and e, indicates thesmaller piston in the hydraulic cylinder. These two pistons areconnected to move in unison by the straight piston rod f, extendingthrough the adjoining 95 ends of said cylinders.

In operation, the steam in the steam cylinder forces the steampiston 1),forward thereby forcing the hydraulic piston forward which moves theactuating fluid in the hydraulic 6o cylinders to operate the presscylinders. The steam and hydraulic pistons are returned by steamadmitted in front of the steam piston.

Heretofore in order to properly pack the hydraulic piston it has beennecessary to remove the front head and the valves and connectionstherefrom of the hydraulic cylinder in order to remove and get at thepistons. This old method was very troublesome and required experiencedhelp and consumed a'7o great deal of time. The ordinary length of timerequired in carrying this old method of packing is about one day so thatthe use of the machine for an entire day is lost amounting to a verylarge money loss in a large machine. In order to obviate this difficultyand disadvantage the said piston rod is cut or formed into sections at apoint 0, near the piston in the hydraulic cylinder, thereby form- .-ingthe piston rod in two sections and rem'ov- 8o ably yet rigidly securethem together by means of a mortise in the squarely cut end of onesection and a tenon on the squarely cut end of the other sections toenter said mortise; transverse holes being formed through the ends ofsections which thus interlock (through the mortise and tenon) so thatsaid holes register to receive the pin g. This pin is removable yet itholds the piston rod rigid as if unbroken. I

When it is desired to remove the hydraulic piston, the steam piston ismoved to the rear end of its cylinder, thereby bringing the joint in thepiston rod to a position between the adjoining ends of the cylinders,the key pin 5 g is removed, and the stud bolts 'L, securing the flangedend of the short section of the piston rod to the hydraulic piston areremoved. This section of the piston rod can then be removed and thehydraulic piston pulled out of the open end of the hydraulic cylinderand repaired or properly adjusted in a comparatively short space of timeand with little trouble. The piston can then be slipped into areconnected and ready to operate.

the open end of the cylinder and the short piston rod section boltedthereto and locked to the other section of the rod and the pistonsAccording to this method it takes but about one hour to properly packthe piston and the work can be done easily and economically and withlittle trouble.

The extreme simplicity, utility, and many advantages of thisconstruction are obvious and it is evident that I do not wish to limitmyself to a peculiar means or constructions for clamping the sections ofthe piston rod together and it is evident that various changes might bemade in the forms, constructions and arrangements of the parts withoutdeparting from the spirit and scope of my invention.

Having thus fully described my invention, what I claim asnew, and desireto secure by Letters Patent of the United States, is-

In a hydraulic compress, the combination of thehydraulic cylinder havinga piston, the

steam cylinder opposite the same and having a piston, the single pistonrod directly and rigidly connecting and secured to said two pistons,said piston rod having a short removable transverse section, arranged,substantially as described, at the hydraulic piston end of the rod andremovably secured to sald piston and to the other rod section, so thatwhen the pistons are moved to bring the hydraulic piston to the inneropen end of its cylinder, and the removable section between the twocylinders, said section, can be removed, and the hydraulic pistonslipped out of the open end of its cylinder without affecting thecylinder or remainder of the rod or steam piston, as set forth.

In testimony that I claim the foregoing as my own I aflix my signaturein presence of two witnesses.

WILL W. BIERCE.

Witnesses:

FRANK DAVIES, EDWARD O. LOWE.

